Update packages/babel-parser/src/plugins/typescript/index.js

Co-authored-by: Nicolò Ribaudo <nicolo.ribaudo@gmail.com>
babel · Feb 10, 2021 · ee05451 · ee05451
1 parent 953bda2
commit ee05451
Showing 1 changed file with 13 additions and 9 deletions.
diff --git a/packages/babel-parser/src/plugins/typescript/index.js b/packages/babel-parser/src/plugins/typescript/index.js
@@ -1617,15 +1617,19 @@ export default (superClass: Class<Parser>): Class<Parser> =>
           break;
 
         case "module":
-          if (!next || !this.hasFollowingLineBreak()) {
-            if (next) this.next();
-            if (!this.isLineTerminator()) {
-              if (this.match(tt.string)) {
-                return this.tsParseAmbientExternalModuleDeclaration(node);
-              } else if (this.match(tt.name)) {
-                return this.tsParseModuleOrNamespaceDeclaration(node);
-              }
-            }
+          // "module" cannot be followed by a line break.
+          if (next) {
+            if (this.hasFollowingLineBreak()) break;
+            this.next();
+          } else if (this.isLineTerminator()) {
+            break;
+          }
+
+          if (this.match(tt.string)) {
+            return this.tsParseAmbientExternalModuleDeclaration(node);
+          } else if (this.match(tt.name)) {
+            return this.tsParseModuleOrNamespaceDeclaration(node);
+          }
           }
           break;